Hose coupling



May 21, 1935. c CM 2,002,121

HOSE COUPLING Filed Nov. 25, 1933 FIG.

INVENTOR CARLOS -L. M MASTER Y fli wgw pf+ TTORNEYJ.

Patented May 21, 1935 ;UNlTED STATES PATENT OFFICE v f2,0o2,12i

1 jiiosnooornmo '1' i Carlos L. McMaster, Cleveland Heights, Ohio Application November 25,1933, Serial no. 699,723 I 4 Claims. (o1. 29--1 s.5 )f

This invention. relates to improvements in lined hose, such as is used for the delivery of gashose couplings and in methods of making such oline and the like. V i couplings x l it The hose here shown is of well known form, One of the objects of the present invention is having a rubber body portion 10, a fabric cover :5 the provision of an improved hose coupling com- II and a metal lining l2, said lining being in the "5 prising a minimum number of simple and inexform of a helically wound strip of metal having pensively' constructed parts capable of being its successive coils interlocked and forming a readily and securely assembled with an end of a helical or screw-like groove l4. 7 hose. l V The present improved'hose coupling comprises 0 More particularly, the hose coupling of V the threesimple, one-piece metal members, namely, l0 present application comprises a simple, one-piece a couplingmember A, a cooperating sleeve memcoupling member adapted tohave anend of a a d a hosev pp member Said latter hose assembled therewith, a simple one-piece member being carried by said sleeve member and sleeve member adapted for cooperation with said being adap maintain a o nd in assemcouplingtmember, and a simple lone-piece hose bly with saidcoup membergripping member enclosed and carried by said T up sd s a l t v ly sleevemember for maintaining said hose end in t, n portion 15 y men-11S Of which a assembly with said coupling member, member may be readily turned, said portion being Another object of the present invention is the provided With a Centrally disposed Opening 15 provision of an improved method of making the orresponding in size and shape with the bore of 20 present hose coupling, thereby enabling producsaid hose. On one side of said nut-like p tion'oosts therefor tobe materially lowered and in blign nflw Opening 15 thereof, is an the price of said coupling to be correspondingly externally threadednipple y m s -W c reduced. the coupling member may be readily secured to More particularly, the present improved a y d s red fitting or the like, and on the other 25 method includes the steps of casting the coupling S d O Said nut-like Dori/i011, also in alignment member and the hose gripping -member of the with the opening l6 thereof, is a tubular portion present coupling in one piece, of utilizing the 20, of a size to snugly receive an end of said hose. coupling member part of said casting as a means To afford a more perm n n a s m y f said for supporting the gripping member part thereof hose and said tubular portion 20, said portion is 30 during machining of the same and thereafter, of externally thre e the threads of which 1 separating said parts. erate with the thread-like groove M of the hose Further objects of the invention are in part lining [2. On the same side as said hose-receivobvious andin part will appear more in detail ing tub portion the nut-like p n 5 o hereinafter. said coupling member is provided with an exter- 35 The present invention will be readily undernally threaded sleeve member receiving portion stood from the following description thereof, ref- 22, which POItiOXI is also of u ul form bu of erence being had to the accompanying drawing enlarged cross-sectional size, so that an annular in which chamber is provided between said hose-receiving 40 Fig. 1 is a side elevation of the present importion 20 and said sleeve member connecting 40 proved coupling in assembly with an end of a, portion 22 for snugly receiving said hose end, all hose, parts of said coupling and said hose being as clearly shown in Fig. 1. broken away and in section for clearness of illus- The sleeve member B is a simple tubular memtration; Fig. 2 is a longitudinal sectional view of ber, internally threaded at one end for securethe coupling member and the hose gripping ment to the externally threaded, enlarged tubu- 45 member of the present coupling as they appear lar portion 22 of the coupling member and proin the form of a one-piece rough casting; Fig. 3 vided at its other end with an inwardly extendis a similar view but showing the gripping memins, annula f n e engaging Said hose, her part of said casting after it has been ma- The hose gripping member C is a simple split chined; and Fig. 4 is a side elevation of said couring member, provided on its inner surface with 50 pling member and said gripping member, in finannular, hose gripping teeth or corrugations 32. ished form and in separated relation. If desired and as shown, said gripping member Although the present improved coupling is may be provided, in opposed relation to the suitable for use with various forms of hose, it is thro gh l 33 thereof, w h a partial, trans especially suitable for use with flexible, metal versely disposed slot 34, to thereby enable said 56 member, which longitudinal movement is effected by the sleeve member B. The inwardly extending annular flange 25 constitutes the rear abutment member when said member sleeve member,

for said gripping as it is in use of the device.

To reduce the costs of producing the hose gripping member C of the said member present improved coupling, and the coupling member A are formed as a one-piece casting, as shown in Fig. 2.

The coupling member part of said casting therefore serves as a convenient means of supporting the gripping member part of said casting during machining thereof, both internally and externally, a method which is of great commercial importance, inasmuch as it enables the present coupling to be made and sold at much lower cost.

After the hose gripping part of said casting has been properlymachined, as shown in Fig. 3,. said casting is separated into its two parts, one part being the hose gripping member C and the other part being the coupling member A. Either before or after such separation, theccupling member is finished, as shown in Fig. 4, and the hose gripping member provided with its transversely disposed slots 33, 34, all as will be readily understood. I

Further features of the present invention will be apparent to those skilled in the art to which it relates.

ber

I of said sleeve-member provides an internal annular shoulder 40 which is locatedwithin said What I claim is 1. In the method of making a hose coupling" having a coupling member and a hose gripping member, the step of making said members in one piece with said members directly connected to each other end to end, and the subsequent step of separating said members.

2. In the method of making a hose coupling having a coupling member and a hose gripping member, the step of making said members in one piece, the subsequent step of finishing the surfaces of said gripping member while said memis connected to and supported by said coupling member, and the subsequent step of separating said members.

. .3. In the method of making a hose coupling having a coupling member and a transversely slotted hose gripping member, the step of making said members in one piece with said members directly connected to each other, the step of finishing the surfaces of said'gripping member while said member .is connected to and directly supported by said coupling member, the subsequent step, of separating said members, and the subsequent step of transversely slotting the gripping member.

. 4.111 the method of making a hose coupling having a generally tubular coupling member and a generally tubular hose gripping member, the latter-member having a beveled end, the step of making said members in one generally tubular piece with the beveled end of said gripping member a free end thereof, the subsequent step of finishing the surfaces of that portion of said generally tubular piece which constitutes said gripping member and while said generally tubular piece is being supported by that portion of it which constitutes said coupling, and the subsequent step of separating said generally tubular piece into said members.

CARLOS L. MCMASTER. 

